大气与环境光学学报 ›› 2009, Vol. 4 ›› Issue (6): 462-468.

• 光电技术 • 上一篇    下一篇

基于微环腔型光滤波器的新型气体传感器研究

涂兴华1,2   

  1. (1 南京邮电大学微流控光学技术研究中心, 江苏 南京 210003; 2 南京大学国家微结构实验室微波光子学实验室, 江苏 南京 210093)
  • 收稿日期:2009-07-20 修回日期:2009-09-14 出版日期:2009-11-28 发布日期:2009-11-17
  • 通讯作者: 涂兴华(1976-),男,南京邮电大学讲师,现为南京大学在职博士后,研究方向为光电子学及光互连技术。 E-mail:tuxh@njupt.edu.cn
  • 作者简介:涂兴华(1976-),男,南京邮电大学讲师,现为南京大学在职博士后,研究方向为光电子学及光互连技术。
  • 基金资助:

    南京邮电大学引进人才科研启动基金(NY207026),江苏省高校自然科学基础研究计划资助项目(7Z208014)

Study of A Novel Gas Sensor With Optical Filter Sensor Based on Micro-Ring Resonator

TU Xing-hua1,2   

  1. (1 Microfluidics and Optics Technology Research Center, Nanjing University of Posts and Telecommunications,Nanjing 210003, China; 2 Microwave-Photonics Technology Laboratory, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China)
  • Received:2009-07-20 Revised:2009-09-14 Published:2009-11-28 Online:2009-11-17

摘要:

基于微环腔型光学滤波是一项正在发展中的新型气体传感技术,在工业生产、环境保护和医学等领域具有广阔的应用前景。利用微环状波导腔构成气室的吸收光谱型气体传感器具有结构紧凑性、良好的波长选择性等优点。通过气体吸收光谱及微环腔特性的计算和分析,对基于微环腔型光滤波器的新型气体检测传感系统的设计进行了研究和探索,分析了微环尺寸与其谐振波长、自由光谱范围之间的关系。

关键词: 滤波, 微环腔, 气体传感, 自由光谱范围

Abstract:

Optical fiber gas sensing technology based on micro-ring resonator is a new measuring technique, which has a wide applicable prospect in the fields of industrial production, environment monitoring and medical science. There is a micro-ring structure in the gas sensor based on absorption spectroscopy, which has some advantages of the compact whole fabric and perfect wavelength selectivity. According to numerical analysis about the characteristic of spectrum absorption of specific gas and micro-ring resonator, a normal design of optical fiber detection system of gas is presented and discussed, which has micro-ring optical filter. The theory of micro-ring resonator is mainly introduced. And the relation among the size of the micro-ring, resonance wavelength and freedom spectrum range are discussed in detail.

Key words: filtering, micro-ring resonator, gas sensing, freedom spectrum range

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